Date: 10/18/18 3:16 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare BIrd Alert, 18 October 2018
Compiler: Joyce Takamine
e-mail: RBA AT
Date: October 18, 2018
This is the Colorado Rare Bird Alert for Thursday, October 18 sponsored by
Denver Field Ornithologists and the Bird Conservancy of the Rockies.

Note that the RBA is using the new AOU checklist.
Rare and out of range species for the last seven days include: (*indicates
new information on this
species is new)

Greater White-fronted Goose (Baca)
Cackling Goose (*Boulder)
Eurasian Wigeon (Montezuma)
Storm Wigeon (Montezuma)
Greater Scaup (Arapahoe)
Surf Scoter (*Adams, *La Plata)
Bufflehead (Adams, Baca, Boulder, Fremont, Jefferson, La Plata, Larimer,
Rio Grande, Summit)
Hooded Merganser (*Adams,* Boulder, Jefferson, *La Plata)
Red-breasted Merganser (Boulder, Larimer)
Ring-necked Pheasant (*Las Animas)
Horned Grebe (Arapahoe, Denver, *La Plata, *Montrose)
Common Poorwill (El Paso)
White-throated Swift (Fremont, Garfield)
Virginia Rail (Larimer)
Sandhill Crane (El Paso, Fremont, Rio Grande, Teller)
Black-bellied Pover (Boulder, *Larimer)
American Golden-Plover (Arapahoe, *Boulder, Jefferson, Larimer, *Summit)
Semipalmated Plover (Arapahoe, Boulder)
Killdeer (Clear Creek)
Stilt Sandpiper (Arapahoe, *Boulder)
Sanderling (Boulder, *Jefferson, Montezuma)
Pectoral Sandpiper (Boulder, Douglas, *Larimer)
Short-billed Dowitcher (*Arapahoe, Boulder)
Lesser Yellowlegs (*Arapahoe, *Broomfield)
Willet (Summit)
Wilson’s Phalarope (Jefferson)
Red-necked Phalarope (Jefferson)
Bonaparte’s Gull (Adams, Arapahoe, *Larimer)
Laughing Gull (La Plata)
Franklin’s Gull (Arapahoe, *Boulder, *Larimer, Rio Grande)
Mew Gull (Arapahoe, *Boulder)
Lesser Black-backed Gull (Larimer)
Forster’s Tern (*Summit)
Red-throated Loon (*Denver)
Common Loon (*Adams, *Arapahoe)
American White Pelican (Clear Creek)
Snowy Egret (La Plata)
Green Heron (*Arapahoe, Fremont)
White-faced Ibis (Arapahoe)
Osprey (Fremont, Ouray)
Lewis’s Woodpecker (*La Plata)
Acorn Woodpecker (La Plata)
Red-belllied Woodpecker (Larimer)
Williamson’s Sapsucker (*Ouray)
Red-naped Sapsucker (Larimer)
Ladder-backed Woodpecker (*El Paso)
Hammond’s Flycatcher (*La Plata, Montrose)
Gray Flycatcher (El Paso, *Jefferson)
Dusky Flycatcher (La Plata)
Cordilleran Flycatcher (Larimer, Montezuma)
Black Phoebe (La Plata)
Eastern Phoebe (Jefferson)
Scissor-tailed Flycatcher (*El Paso)
Steller’s Jay (Boulder, Clear Creek, El Paso, Garfield, *Jefferson,
Larimer, *Ouray)
Woodhouse’s Scrub-Jay (El Paso, Garfield, *Jefferson, *La Plata)
Clark’s Nutcracker (*Ouray)
Common Raven (*Adams)
Juniper Titmouse (*La Plata)
Bushtit (*La Plata, Ouray)
Rock Wren (Boulder, Larimer, *Montrose)
Marsh Wren (Larimer)
Bewick’s Wren (*Montrose)
Blue-gray Gnatcatcher (El Paso)
American Dipper (*Arapahoe)
Ruby-crowned Kinglet (Adams, Clear Creek, *El Paso, Garfield, *Jefferson,
*La Plata,* Larimer, Mesa, *Montrose, *Ouray, San Juan)
Eastern Bluebird (Larimer)
Western Bluebird (*Arapahoe)
Mountain Bluebird (*Adams, *Arapahoe, Boulder, Clear Creek, *El Paso,
Jefferson, *La Plata, *Larimer,* *Montrose,* Ouray, Teller)
Hermit Thrush (Boulder, Denver, *El Paso, *Jefferson, *Larimer)
Curve-billed Thrasher (El Paso)
Sage Thrasher (Fremont, Mesa, *Montrose)
Northern Mockingbird (*Las Animas)
American Pipit (*Arapahoe, Clear Creek, El Paso, Jefferson, Larimer,
*Montrose, Ouray, Summit)
Sprague’s Pipit (Larimer)
Lesser Goldfinch (Denver)
McCown’s Longspur (Boulder)
Green-tailed Towhee (*Jefferson, La Plata)
Canyon Towhee (El Paso)
Savannah Sparrow (La Plata, Larimer, Park)
Grasshopper Sparrow (*Larimer)
Brewer’s Sparrow (Clear Creek, *Montrose, Ouray)
Vesper Sparrow (Jefferson)
Lark Sparrow (Jefferson)
Field Sparrow (Boulder)
Sagebrush Sparrow (*Montrose, *Ouray)
Fox Sparrow (*Boulder, Larimer, *Prowers)
Lincoln’s Sparrow (Adams, *Arapahoe, Clear Creek, *El Paso, Jefferson,
*Larimer,*Montrose, *Prowers, San Juan)
Swamp Sparrow (Larimer)
White-throated Sparrow (*Boulder, *Prowers, Saguache)
Harris’s Sparrow (Boulder, El Paso)
Brown-headed Cowbird (Teller)
Tennessee Warbler (*Bent)
Orange-crowned Warbler (Adams, *Arapahoe, Clear Creek, Douglas, *Larimer,
Montrose, Ouray)
Common Yellowthroat (Larimer, Mesa)
Palm Warbler (*Boulder)
Townsend’s Warbler (Gunnison, La Plata, Mesa, Pueblo)
Black-throated Green Warbler (*Bent, Clear Creek)
Wilson’s Warbler (Boulder, Eagle, La Plata, Larimer, Mesa, *Montrose)
Western Tanager (Boulder, *Larimer, Pueblo)
Rose-breasted Grosbeak (*Pitkin)

---On October 15 at Ken Mitchell Park and OS, Adam Besely reported 5
Bufflehead and 2 Bonaparte’s Gull.
---On October 16 at Lowell Ponds (Clear Creek Valley Park), Gabriel Wiltse
reported 6 Hooded Merganser and Orange-crowned Warbler.
---On October 17 at Rocky Mountain Arsenal NWR Mark Obmascik reported Surf
Scoter, 6 Hooded Merganser, 28 Mountain Bluebird and Common Raven.
---On October 17 at McKay Lake, Tyler Wilson reported Common Loon.

---On October 15 at Cherry Creek SP Marina and nearby Dam Trail, Bez
Bezuidenhout, Don Beltz, and Gary Brower reported American Golden-Plover,
Semipalmated Plover, and Bonaparte’s Gull. On October 16 at Cherry Creek
SP in SW corner, Bob Righter reported 4 Lesser Yelllowlegs, Stilt
Sandpiper, and White-faced Ibis (flyover); Edward Donnan reported 2 Lesser
yellowlegs, White-faced Ibis (flyover) and 2 American Pipit. On October 16
at Cherry Creek SP—Pelican Point, Loch Kilpatrick reported American
Golden-Plover, WESTERN GULL (flyover) and American Pipit. On October 16 at
Cherry Creek Reservoir Lake Loop, Ben Sampson reported 2 Greater Scaup, 20
Horned Grebe, and 2 Lesser Yellowlegs. On October 16 at Pelican Point, Ben
Sampson reported Mew Gull and Franklin’s Gull. On October 17 at Cherry
Creek SP at Pelican Point, Karen Drozda reported Common Loon, 12 Western
Bluebird, 2 Mountain Bluebird, and 2 American Pipit. On October 17 at
Cherry Creek SP Prairied Loop, Karen Drozda reported Lesser Yellowlegs, and
American Pipit. On October 17 at Cherry Creek SP, Chris Gilbert reported
Short-billed Dowitchere and 10 American Pipit.
---On October 17 at S Platte River – Northern Wildlife Area to W Bowles
Ave, Brian Johnson and Ginny Bergstrom reported Green Heron and American
---On October 17 at S Platte Park, C470 area, Chris Wood reported Lincoln’s
Sparrow and Orange-crowned Warbler.

---On October 16 at Walsh Water Treatment Plant, Tony Leukering reported
Greater White-fronted Goose, and 3 Bufflehead.

---On October 17 at Melody Tempel Grove, Dave Leatherman reported f
Tennessee Warbler, and f Black-throated Green Warbler, The birds were high
in cottonwoods W of CR 35 and N of ditch.

---On October 15 at Prince Lake #2, John Vanderpoel, Peter Burke, and Luke
Pheneger reported American Golden-Plover, 2 Stilt Sandpiper, and 1st cycle
Mew Gull. On October 16 at Prince Lake #2, Carl Starace, Ted Floyd, David
Ely, John Rutenbeck, Okamoto Keita Sin, David Haskell, Kathie Lehmanm and
Ginny Bergstrom reported Black-bellied Plover, American Golden-Plover, 3
Stilt Sandpiper, 2 Pectoral Sandpiper, Franklin’s Gull, and Mountain
Bluebird. On October 17 at Prince Lake #2, James McCall and several other
birders reported American Golden-Plover, 5 Stilt Sandpiper, Franklin’s
Gull, and 1st cyc Mew Gull.
---On October 15 at Valmont Overlook/Legion Park, Ted Floyd, Luke Phenger,
and Peter Burke reported 7 Bufflehead, 8 Hooded Merganser, 16 Red-breasted
Merganser, Semipalmated Plover, Sanderling, 20 Mountain Bluebird, and Field
---On October 15 at Boulder Creek and University of Colorado Campus, Nathan
Pieplow reported 10 Hermit Thrush, and Fox Sparrow (red). On October 16 at
Boulder Creek and University of Colorado Campus, Nathan Pieplow reported
Hermit Thrush and Fox Sparrow (red). On October 17 at Boulder Creek and
University of Colorado Campus, Okamoto Keita Sin reported Fox Sparrow (Red)
and White-throated Sparrow.
---On October 15 at Confluence Ponds and Skunk Creek on CU East Campus,
David Dowell reported Palm Warbler. On October 16 on CU East Campus near
Space Science Build in pines in parking lot, Mark Minner-Lee reported
Western Palm Warbler; also reported by David Dowell, Bill Kaempfer and
David Ely. On October 17 on CU East Campus near Space Science Building
parking lot, Carolyn Breech and Dan Zmolek reported Palm Warbler.
---On October 16 at Twin Lakes, Dan Zolmek reported 2 Short-billed
---On October 16 at Walden Ponds, Chuck Hundertmark reported 3 Hooded
Mergansers, Stilt Sandpiper, and Pectoral Sandpiper.
---On October 16 in Nederland (town), Brent Campos reported 3 Steller’s
Jay, Fox Sparrow, Harris’s Sparrow, and Wilson’s Warbler.
---On October 16 at Lagerman Reservoir, Ginny Bergstrom reported Rock Wren
and McCown’s Longspur.
---On October 17 at Hecla Lake, Rob Cassady reported 7 Cackling Geese and 4
Hooded Merganser.

---On October 17 at Alexx and Michaels Pond, Alicia Arnold and Tyler Wilson
reported Lesser Yellowlegs.

---On October 16 at Idaho Springs (town), Chris Wood reported 7 Steller’s
Jay, 4 Ruby-crowned Kinglet, 3 American Pipit (flyover), Brewer’s Sparrow,
Lincoln’s Sparrow, Orange-crowned Warbler, and Black-throated Green Warbler.
---On October 16 at Georgetown Lake, Chris Wood reported Killdeer,
Steller’s Jay and Mountain Bluebird.
---On October 16 at Macy/Ruth Mill Park Idaho Springs, Scott Somershoe
reported American White Pelican and Steller’s Jay.

---On October 16 at Marston Reservoir West End, Doug Kibbe, Mackenzie
Goldthwaite, and Gwen Moore reported 2 Horned Grebe and Red-throated Loon.
On October 17 at Marston Reservoir, Betty Glass reported Red-throated Loon.
---On October 16 at Bear Creek Park, Doug Kibbe and Mackenzie Goldthwaite
reported 2 Hermit Thrush and 8 Lesser Goldfinch.

---On October 15 at Starsmore Discovery Center, Chris Brown reported Common
Poorwill, 35 Sandhill Cranes, 2 Steller’s Jay, Woodhouse’s Scrub-Jay, and
Hermit Thrush. Lincoln’s Sparrow, and Canyon Towhee.
---On October 16 at Red Rock Canyon OS, Jim Merritt reported Steller’s Jay,
10 Woodhouse’s Scrub-Jay, Harris’s Sparrow, Lincoln’s Sparrow, and Canyon
---On October 16 in Colorado Springs Monument Branch between Voyager and
I-25, Roger Massey reported 2 Steller’s Jay, Blue-gray Gnatcatcher, and
Hermit Thrush.
---On October 16 on Finch Road, David Tonnessen reported Scissor-tailed
Flycatcher, 6 Mountain Bluebird, Curve-billed Thrasher, and American
Pipit. On October 17 at 17215 Finch Road, Jim Merritt reported
Scissor-tailed Flycatcher.
---On October 17 at Chico Basin Ranch, Jim Merritt and Chris Brobin
reported Ladder-backed Woodpecker, 10 Ruby-crowned Kinglet, 4 Mountain
Bluebird, 2 Hermit Thrush, and Lincoln’s Sparrow.

---On October 15 at Canon City Riverwalk—Sell’s Lake to S Raynold Ave,
Jerry DeBoer reported 3 White-throated Swift, and Green Heron.
---On October 15 at Brush Hollow Reservoir, Jerry DeBoer reported 2
Bufflehead, 47 Sandhill Cranes, Osprey, and Sage Thrasher.

---On Ocgtober 16 on ridge (39.533, -107,342) in Glenwood Springs, Rebecca
Weiss reported 5 White-throated Swift, Steller’s Jay, 4 Woodhouse’s
Scrub-Jay, and 4 Ruby-crowned Kinglet.

---On October 15 at Robert A Easton Regional Park, Elaine Wagner reported
American Golden-Plover and Mountain Bluebird. On October 16 at Robert A
Easton Regional Park, Tuesday Birders and Christine Alexander reported
American Golden-Plover.
---On October 15 at Harriman Lake Park, Phil Lyon and many other birders
reported 24 Bufflehead, 2 Hooded Merganser, American Golden-Plover, 5
Mountain Bluebird, American Pipit, Wilson’s Phalarope, and Red-necked
Phalarope. On October 16 at Harriman Lake Park, Doug Kibbe and Mackenzie
Goldthwaite reported 2 Lark Sparrow and Vesper Sparrow.
---On October 15 at Chatfield SP Audubon Center and Trails, Chris Wood
reported Eastern Phoebe, 12 Ruby-crowned Kinglet, 155 Mountain Bluebird,
Hermit Thrush, Lincoln’s Sparrow and Orange-crowned Warbler.
---On October 16 at Waterton Canyon from Waterton road to overhead pipes,
Tuesday Birders reported 6 Steller’s Jay and Western Tanager.
---On October 16 on Clear Creek Trail Golden, Tyler Wilson reported Gray
Flycatcher, 2 Woodhouse’s Scrub-Jay, Ruby-crowned Kinglet, and Hermit
---On October 17 on Clear Creek Trail – Indian Gulch to Clear Creek History
Park, Ginny Bergstrom reported Gray Flycatcher, Woodhouse’s Scru b-Jay,
Ruby-crowned Kinglet, and Hermit Thrush.
---On October 17 at Lower White Ranch Park, Lindsay Purifoy and Timo Mitzen
reported 2 Steller’s Jay, 3 Woodhouse’s Scrub-Jay, 4 Ruby-crowned Kinglet,
and Green-tailed Towhee.
---On October 27 at Standley Lake and Park, Frank Farrell reported

---On October 15 at Pastorius Reservoir, Susan Allerton reported 7
Bufflehead, Laughing Gull, Dusky Flycatcher, 10 Bushtit, 4 Mountain
Bluebirds, and Wilson’s Warbler. On October 16 at Pastorius Reservoir,
Susan Allerton and Jason St. Pierre reported 2 Surf Scoter, Ruby-crowned
Kinglet, Green-tailed Towhee, and Wilson’s Warbler; Lily Douglas reported
Acorn Woodpecker, Juniper Titmouse, 2 Ruby-crowned Kinglet and Savannah
Sparrow. On October 17 at Pastorius Reservoir, Jason St. Pierre reported
Surf Scoter, and 4 Ruby-crowned Kinglet.
---On October 16 at Animas river—Huck Finn Pond and Hatchery area, Ryan
Volta reported 3 Ruby-crowned Kinglet, Townsend’s Warbler, and Wilson’s
Warbler. On October 17 at Animas River – Huck Finn Pond and Hatchery area,
Ryan Votta reported Lewis’s Woodpecker, Ruby-crowned Kinglet, and Mountain
---On October 17 at Vallecito Reservoir, Jim Beatty reported 4 Horned Grebe.
---On October 17 at Lake Nighthorse, Susan Allerton reported pair of Hooded
Merganser, Hammond’s Flycatcher, Woodhouse’s Scrub-Jay, Junipter Titmoiuse,
2 Bushtit, and 4 Ruby-crowned Kinglet.

--- On October 15 at Timnath Reservoir, Nick Komar reported 3 Pectoral
Sandpiper, 3 Lesser Black-backed Gull, Rock Wren, Marsh Wren, 8 Mountain
Bluebird, Hermit Thrush, 85 American Pipit, Lincoln’s Sparrow, and Wilson’s
---On October 14 at Arapahoe Bend NA—Rigden Reservoir (Strauss Cabin Lake)
Edward Raynor reported HARRIS’S HAWK at gravel pit, 40 Mountain Bluebird,
and 40 American Pipit. On October 15 at Arapahoe Bend NA—Rigden Reservoir
(Strauss Cabin Lake), Lori Zabel reported 10 Bufflehead, 2 Eastern
Bluebird, 25 American Pipit, and Sprague’s Pipit. On October 16 at
Arapahoe Bend NA—Rigden Reservoir (Strauss Cabin Lake), Nick Komar, David
Wade and Kevin Keirn reported Red-breasted Merganser, 5 Virginia Rail, 2
Marsh Wren, Ruby-crowned Kinglet, 53 Mountain Bluebird, 7 American Pipit,
Savannah Sparrow, 2 Lincoln’s Sparrow, Swamp Sparrow, and Common
Yellowthroat. On October 16 at Arapahoe Bend NA, Lori Zabel and Christine
Sparks reported Fox Sparrow (red).
---On October 15 at Lonetree Reseervoir, Nick Komar reported American
---On October 15 at Grandview Cemetery, Luke Caldwell and Andy Bankert
reported Red-bellied Woodpecker. On October 16 at Grandview Cemetery,
David Wade reported Fox Sparrow (red).
---On October 17 at Wellington SWA – Cobb Lake Unit, Andy Bankert reported
Black-bellied Plover, Pectoral Sandpiper, Bonaparte’s Gull, Franklin’s
Gull, Common Loon, Ruby-crowned Kinglet, 3 Mountain Bluebird, Grasshopper
Sparrow, Lincoln’s Sparrow, and Orange-crowned Warbler.
---On October 17 at Prospect Ponds NA, Lori Zabel reported Hermit Thrush
and Western Tanager.

---On October 17 at CR 89.3, David Suddjian and DFO Field Trip reported 4
Ring-necked Pheasant and Northern Mockingbird.

---On October 16 at Colorado River SP – Fruita Section, Douglas Diekman
reported 8 Ruby-crowned Kinglet, Sage Thrasher, and Townsend’s Warbler.

---On October 16 on mudflats west of boat launch at McPhee Reservoir, Erick
Hendrickson reported Sanderling. (Walk about 1 mile W of Launch Ramp with
---On October 16 at Cortez Industrial Pond, Erik Hendrickson reported Storm
Wigeon and apparent hybrid American X Eurasian Wigeon.

---On October 15 at Chipeta Lake, Brenda Wright and Coen Dexter reported
Orange-crowned Warbler and 3 Wilson’s Warbler.
---On October 16 at Cooper’s Ditch, Coen Dexter and Brenda Wright reported
Hammond’s Flycatcher, 5 Ruby-crowned Kinglet, 22 Mountain Bluebird, 3
American Pipit, and Orange-crowned Warbler.
---On October 17 at Elde’s, Coen Dexter and Brenda Wright reported 2 Rock
Wren, 2 Bewick’s Wren, 3 Ruby-crowned Kinglet, 150 Mountain Bluebird, 3
Sage Thrasher, American Pipit, Brewer’s Sparrow, Sagebrush Sparrow and
Wilson’s Warbler.
---On October 17 at Airport Lake and Mesa, Coen Dexter and Brenda Wright
reported 5 Mountain Bluebird and Sagebrush Sparrow.
---On October 17 at Otter Pond, Betty Fenton reported Horned Grebe,
Ruby-crowned Kinglet and Lincoln’s Sparrow.

---On October 15 at Ridgway Reservoir and SP, Coen Dexter and Brenda Wright
reported Osprey, Clark’s Nutcracker, 8 Bushtit, 2 Ruby-crowned Kinglet,
Mountain Bluebird, American Pipit, 2w Brewer’s Sparrow, 3 Sagebrush
Sparrows, and Orange-crowned Warbler.
---On October 17 at Pa-Co-Chu-Puk, Jon Horn reported Williamson’s
Sapsucker, Steller’s Jay, Clark’s Nutcracker, 5 Ruby-crowned Kinglet, 8
Mountain Bluebird, and Sagebrush Sparrow.

---On October 17 at Midland Park in Aspen, Catherine Hagen reported
Rose-breasted Grosbeak.

---On October 17 at North Butte CR at G Rd, Tony Leukering reported Fox
Sparrow (red), White-throated Sparrow, and 2 Lincoln’s Sparrow.

---On October 15 at Monte Vista NWR, Alan and MaryLynne Ketcham reported 4
Bufflehead (1m, 3f), 30 Sandhill Cranes, and Franklin’s Gull.

---On October 15 at Russell Lakes, John Cobb reported White-throated

---On October 15 on Spud Lake and Trail, Lily Douglas reported 4
Ruby-crowned Kinglet and Lincoln’s Sparrow.

---On October 16 at Dillon Reservoir Giberson Bay, M Walt reported 3
Bufflehead, Willet, and 6 American Pipit; Reed Gerdes reported American
Golden-Plover and Rock Wren. On October 17 at Dillon Reservoir Giberson
Bay, M Waltk and Adam Vesely rpoerted American Golden-Plover and Forster’s

---On October 15 at 8415 – 8426 CR 11 Florissant, Anne Winters and Jason
Piertrzak reported 3 Sandhill Cranes (flyover), Mountain Bluebird, and 15
Brown-headed Cowbirds.

DFO Field Trips
For more details go to the DFO website

Second Creek Open Space
Saturday, October 20
7:00 AM – 11:30 AM
Patrick O’Driscoll )(patodrisk AT; 303-885-6955 (cell))

Park County Reservoirs
Monday, October 22
David Suddjian (dsuddjian AT; 831-713-8659
Northeastern Colorado
Tuesday, October 23
5:30 AM – 7:00 PM
David Suddjian (dsuddjian AT; 831-713-8659)

Good Birding,
Joyce Takamine

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